Updated mediawiki/extensions
Project: mediawiki/extensions/WikiArticleFeeds  d6360acef0be7c2d8e9cb5f2fc398e0f0a0f849f

Use .feedlink class rather than feed-icon.png file

As a bonus the icon now uses SVG with PNG fallback.

Bug: 70615
Change-Id: I4645f266ab84ae4c411296f099dff4a5ef5b88e7